Answer:
Savannah collected 180 stamps and her brother collected 36 stamps
Step-by-step explanation:
Let
x = number of stamps Savannah brother collected
Savannah collected 5 times as many stamps as her brother, then
5x = number of stamps Savannah collected.
Total number of stamps = 216, then
The area of the portion of S lying outside R is 63xy
<h3>What is a Rectangle ?</h3>
A rectangle is a polygon with four sides , four angles and four vertices , It has opposite sides parallel and equal.
It is given in the question that
A rectangle R has width x and length y.
A rectangle S is formed from R by multiplying each of the sides of rectangle R by 8
Area of R is xy
Area of S is 8x * 8y = 64xy
The area of the portion of S lying outside = 64xy - xy = 63xy
To know more about Rectangle
brainly.com/question/15019502
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Answer:
y = 9
Step-by-step explanation:
the two sides are balancing so that means one 'x' and three 'y' equals four 'x' plus one 'y'
x + 3y = 4x + y
subtract 'x' from each side to get:
3y = 3x + y
subtract 'y' from each side to get:
2y = 3x
if 'x' = 6 then:
2y = 3(6)
2y = 18
y = 9
Non-proportional because all the dots are scattered I believe a proportional chart will have a straight line please correct me if I’m wrong :)
In this question, there are 10 digit phone number which was divided into 3-3-4 digits. Every first digit of the division should be 2-9 which mean only 8 possibilities. The other digits would be 0-9 which mean 10 possibilities. Then the calculation would be:
8*10*10 * 8*10*10 * 8*10*10*10 = 8^3 * 10*7= 512 * 10^7= 5.12 * 10^9
If you convert <span>400,000,000 into the scientific form it will become 4* 10^8. Since 5.12*10^9 > 4 * 10^8, then it is clear that the number should be enough</span>
